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Python

expected output

I am getting, "didn't get the expected output", not sure where the error is

instances.py
def combiner(lst):
    x = ""
    j=0
    for item in lst:
        if  isinstance(str,str) and isinstance(float,int):
            x.append(lst[item])
            j+=j
    return x + str(j)      

1 Answer

There are a number of errors.

  • You can't append() to a string. You use + to add to a string.
  • isinstance syntax is wrong. Remember you need to check item.
  • something can't be a string and a number. You need to check for two conditions -- if it's a string, do this, if it's a number, do that.
  • you need to increment j by item (if it's a number), not by itself, which is 0